Masteries

Offense:
0

Defense:
30

Utility:
0

Threats to Shen with this build

Igonore I put Ryze I wanted to represent Mages and I personally I think Ryze is the core of Mages and you know Full Mages(Such as Ryze , Lissandra , Nidalee etc.) don't base on basic attacks but Marksman Mages(Teemo , Kayle , Twisted Fate etc.) can kill him

8

Teemo

Teemo has Blind Dart and in early game you need to deal basic attack to regenerate with Q and Passive

Summary

I personaly think Blade of The Ruined King , Spirit Visage , Sunfire Cape and Ninja Tabi or Mercurial's Therads (Depending on the situation) are ''Must Have''
You can choose Thornmail , Randuin's Omen or Trinty Force , Banshee's Veil etc. (I personally
I choose Banshee's Veil and Randuin's Omen)
You can add another items , but I choose this build because you are Unstopabble Tank Shen
At final I add Iron Elixir for extra tank